Tests in Saigon and stateside by the Army’s own Advanced Research Projects Agency (ARPA) in 1961-62, showed the AR-15 to be outstanding in virtually every comparison to existing US shoulder weapons. SALVO, SPIW, ARPA and AR-15 A material must remain in its elastic region when loaded up to its proof load typically between 85-95% of the yield strength. America was at war in the jungle, again.” From The Black Rifle. Both rifles, and the very different cartridges they fire, have admirable characteristics and unfortunate flaws.

You forgot the M1941 Johnson rifles, they were rotary bolt design, and probably the first descendant of the rotary bolt design in the states, Melvin Johnson went to work with Eugene Stoner in helping development of the AR-10, I wish I had one of those rifles to add to my collection. In contrast, the enemy’s AK-47/PRC Type 56 assault rifle had grown in folklore into what many considered the world’s most reliable, accurate and deadly shoulder weapon. Captured M16’s became coveted items for the VC, who called it the “Black Rifle.” Then, it was no cause for amusement among some US troops who had earlier disparaged the Sixteen as inferior to the enemy AK, to now be on the receiving end of 5.56mm fire.

Caliber: 5.56 x 45mm (.223 caliber)

Making a very long story short, an innovative NATO standard caliber rifle, designed by the gifted Eugene Stoner, had been scaled down at Colt to very effectively shoot a high-velocity varmint cartridge that had become wildly popular with sportsmen and hunters. Both the standard M14 and the tricked-up A1 models were in general issue throughout the Army and Marine Corps when the first American ground combat units of both services were sent to Vietnam in 1965.

A dozen years after the end of WWII, during which most of the rest of NATO had happily chosen the Belgian FAL, America’s soldiers and marines got the home-grown M14, a product of Springfield Armory (the government arsenal, not the current commercial firm). But, by this time nearly irreparable damage had been done to the reputation of the M16 both among combat troops in Vietnam and the American public.

Cyclic rate: 750 rpm I probably put over 10,000 rounds through the tube, none in direct combat. In particular, intelligence analysis after the 1968 Tet Offensive showed the NVA to be particularly shaken by the effective firepower of both US and ARVN units now fully equipped with M16’s.

During the “Cold War” which followed the stalemate in Korea, America stepped up its search for a suitably modernized shoulder weapon to replace the venerable but obsolescent M1. Besides the civilian and military designations what’s the real difference between the M16 and the AR15? M14 vs. M16 in Vietnam. I totally disagree.

Comments have not been generated for this article. Google use cookies for serving our ads and handling visitor statistics. The Army’s best attempts at curing the problem included addition of a heavy barrel, sturdy folding bipod, sophisticated muzzle brake, and yes, even a nicely sculpted new wooden stock with pistol grips fore and aft.

Product Improvements It should surprise no one who is in any way attuned to the complex relationships of men and their machines that heated controversy remains even today between proponents of the M14 and those of the M16. The enemy’s ‘arm of choice’ was the AK47. Caliber: 7.62 x 51 mm NATO Standard (.30 caliber)

Full Auto Follies The M16 rifle, officially designated Rifle, Caliber 5.56 mm, M16, is a family of military rifles adapted from the ArmaLite AR-15 rifle for the United States military.The original M16 rifle was a 5.56mm automatic rifle with a 20-round magazine..

Sporadic reports early on of serious stoppages and gross malfunctions of the M16 rifle began flooding in by the end of ’65.

Sadly, not only was the ammo left essentially as it was, but it took many months before sufficient numbers of adequate cleaning tools reached the front line troops. “In Vietnam around the end of 1965, US forces first engaged disciplined, regular troops of the North Vietnamese Army in the bloody battles of Ia Drang.

But that was 1962 and peacetime, and this was 1965 and counting. It is our duty and our obligation to disobey all unjust and illegal legislation". Feed: 20 round detachable box magazine We waited for the Russian Hordes to come streaming across the Fulda Gap in T55s, but thank God it never Happened. Overall length: 39 in.

AR15 vs M16 vs M4.

The “experimental” designation was dropped on 26 May 1967 when Colt’s XM16E1 became the “US Rifle, 5.56mm, M16A1,” officially replacing the big M14 as “Standard A” throughout the Army. Standard A

For a better experience, please enable JavaScript in your browser before proceeding. " Didn’t work. loaded

Mine saw a lot of dust, bouncing around in my truck, but not true abuse of combat in the jungle.

Alas, the resulting M14E2 (later designated M14A1) squad automatic rifle version remained clearly inferior to the BAR, a genuine embarrassment. AR15: History and Designation. Neither was the perfect rifle, but which was “Numba One” in Vietnam?

The 7.62 NATO cartridge was able to hit a man sized target over most battlefield engagement distances without worrying about dialing in elevation corrections. Effective range: 460 meters

Some of our calculators and applications let you save application data to your local computer. I didn't Go to Viet Nam, and never saw an M16 until we Landed Back in the States in the latter part of 1967. Acceptable clamp load is typically 75% of proof load. Its 5.56mm 55 grain bullet shot fast and flat, tumbling on entry to cause catastrophic wounds and shock-induced death.

The round problem for the 16 came from the powder used. The first units equipped from this and subsequent orders included USAF security police, Army Special Forces and Airborne, Navy Special Operations, and MAAG advisers in Vietnam.

But the single most damning factor in the M16’s sorry combat performance at the time was bad ammo; the result of an unholy alliance of cost-cutting and corner-cutting. Primary Reference Sources One of the few perks of getting old is that you get exposed to more things throughout the course of your life. The Army reluctantly placed an order for some 85,000 Colt rifles, now officially designated M16, with first deliveries scheduled for early 1964.

Feed: 20 round detachable box magazine Subsequent investigation showed combat failures of the M16E1 were partially the fault of inevitable “bugs” in the design of specific parts, sloppy manufacture, inadequate inspection, hasty fielding without adequate training, and the astonishing lack of specialized cleaning equipment needed for field maintenance! M14 x 2.00 141 106 201 150 235 176 M16 x 2.00 218 164 312 233 365 274 M18 x 2.50 301 226 431 323 504 378 M20 x 2.50 426 319 609 457 712 534 M22 x 2.50 580 435 831 624 971 728 M24 x 3.00 736 552 1052 789 1231 923 M27 x 3.00 1079 809 1544 1158 1805 1353 M30 x … However, this wasn’t nearly as much to be concerned with as the rifle’s near-uncontrollability in full auto fire; arguably the M14’s only significant new feature vs. the old M1.

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